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Ludox graft-modified organic phosphate nucleator preparation method

An organophosphate ester and graft modification technology, which is applied in the field of nucleating agents, can solve the problems of poor transparency of organophosphate nucleating agents, achieve good mechanical properties, reduce haze, and increase crystallization temperature

Active Publication Date: 2012-03-21
贵州省复合改性聚合物材料工程技术研究中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the defect of poor transparency of the existing organophosphate nucleating agent, to provide a preparation method of silica sol graft modified organophosphate nucleating agent, and the nucleating agent of the obtained nucleating agent , stiffening and anti-reflection effects are superior to existing organophosphate nucleating agents

Method used

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  • Ludox graft-modified organic phosphate nucleator preparation method
  • Ludox graft-modified organic phosphate nucleator preparation method
  • Ludox graft-modified organic phosphate nucleator preparation method

Examples

Experimental program
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Embodiment 1

[0018] Example 1: Take 6.2 g of 2,2'-methylene-bis(4,6-di-tert-butylphenol) phosphorus oxychloride, dissolve it in 50 ml of absolute ethanol, and add it to 50 ml of 30% (weight) Among the silica sols, the particle size of the silica sol is 30nm, react at 20-25°C for 10 hours, filter with suction, wash with distilled water three times, and dry.

[0019] The infrared spectra of silica sol, 2,2'-methylene bis(4,6-di-tert-butylphenyl) phosphorus oxychloride, and silica sol grafted modified organophosphate nucleating agent are as follows: figure 1 shown, from figure 1 It can be seen from the figure that the infrared spectrum of the silica sol grafted modified organophosphate nucleating agent has a wave number of 1080cm -1 Si-O-Si vibration absorption peak appears at the wave number 2954cm -1 The -CH of the phosphate ester appears at 2 - The characteristic absorption peak of bending vibration, confirming that the organophosphate has been successfully grafted onto the silica sol. ...

Embodiment 2

[0026] Example 2: Take 5.5 g of 2,2'-methylene-bis(4,6-di-tert-butylphenol) phosphorus oxychloride, dissolve it in 50 ml of absolute ethanol, and add it to 80 ml of 25% (weight) In the silica sol, the particle size of the silica sol is 20nm, react at 60-80°C for 1 hour, filter with suction, wash with distilled water three times, and dry.

Embodiment 3

[0027] Example 3: Take 6.8 g of 2,2'-methylene-bis(4,6-di-tert-butylphenol) phosphorus oxychloride, dissolve it in 50 ml of absolute ethanol, and add it to 10 ml of 40% (weight) In the silica sol, the particle size of the silica sol is 10nm, react at 40-50°C for 8 hours, filter with suction, wash with distilled water three times, and dry.

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Abstract

The invention discloses a ludox graft-modified organic phosphate nucleator preparation method, which includes steps of adding 2,2'-methylene-di(4, 6-Di-tert-butylphenol) phosphorus acyl chloride solution into lodox, and then extracting, filtering and drying the mixture to obtain white powder which is ludox graft-modified organic phosphate nucleator after sufficient reaction. Compared with the prior art, the ludox graft-modified organic phosphate nucleator has the advantages that under the action of steric hinderance, dispersity of the ludox graft-modified organic phosphate nucleator in plastics including polyethylene, polypropylene and the like is increased, crystallizing temperature is also increased and haze is reduced. Further, The ludox graft-modified organic phosphate nucleator has better mechnical performance and has better nucleating effect as compared with existing commonly-used NA-11 and NA21 nucleator.

Description

technical field [0001] The invention relates to the technical field of nucleating agents, in particular to a preparation method of a silica sol graft modified organic phosphate nucleating agent. Background technique [0002] The addition of a nucleating agent can change the crystallization behavior of the polymer, accelerate the crystallization rate, increase the crystallization density, and promote the miniaturization of the grain size, so as to shorten the molding cycle, improve the transparency, surface gloss, tensile strength, rigidity, and heat distortion temperature of the product. , impact resistance, creep resistance and other physical and mechanical properties, it is a new functional additive. Commonly used nucleating agents include sorbitol nucleating agents and organophosphate nucleating agents. [0003] Sorbitol-based nucleating agents can endow products with better transparency, surface gloss and other physical and mechanical properties. Sorbitol-based nucleat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/02C08K5/523
Inventor 于杰张敏敏刘辉秦舒浩何敏何文涛黄伟江吴丹华罗筑秦军鲁圣军薛斌韦良强
Owner 贵州省复合改性聚合物材料工程技术研究中心
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